Oil-burning furnace.



J. P. WALSH.

OIL BURNING FURNACE.

APPLICATION FILED NOV. 12, 1914.

1 l 5 1 ,3 1 1 Patented Aug. 24, 1915.

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JOHN P. WALSH, OF NEW YORK,

1\T. Y., ASSIGNOR OF ONE-HALF TO I-IENRY J. MCGUCKIN, OF NEW YORK, N. Y.

OIL-BURNING- FURNACE.

Specification of Letters Patent.

Patented Aug. 24, 1915.

Application filed November 12, 1914. Serial No. 871,745.

To all whom it may concern Be it. known that 1, JOHN P. WALSH, a citizen of the United States, residing at New York, in the county of New York and State of New York,' have invented certain new and useful Improvements in Oil-Burning Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to furnaces, and the primarj object of the invention is to provide a novel form of fire box for properly feeding oil or like liquid volatile fuel, for the proper combustion within a furnace for creating heat.

Another object of this invention is to provide a plurality of air tubes entering into the fire box and extending upwardly therethrough for supplying the fire box with the necessary amount of oxygen to insure the proper combustion of the volatile fuel.

A still further object of this invention is to provide furnace construction which has an auxiliary box supported at the base thereof, and to fill this box with granular material such as sand or the like, and to connect to the box which is filled with granular material an oil or volatile liquid fuel supply tank so that the volatile liquid will enter the box and filter through the sand for burning in the furnace.

A still further object of this invention is to construct a fire box as heretofore specified which will materially decrease the amount of fuel necessary for properly heating the furnace; maintain a uniform burning of the fuel at all parts of the fire box, and one which is simple in construction and inexpensive to manufacture. a

With the foregoing and other objects in view this invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings and claimed.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters designate like or corresponding parts throughout the several views, and in which Figure 1 is a side elevation of the improved furnace. Fig. 2 is a cross sectional new on the line 22 of Fig. 1, and Fig. 3 is a vertical sectional view through a fragment of the furnace.

Referring more particularly to the drawings, 1 designates the housing or construction of an ordinary furnace, which has a flue 2 secured toupper end thereof. The lower end of the furnace housing 1 is inserted in a box 2, which is of greater horizontal area than the housing 1. The bottom or lower end l of the housing lextends into the box 2, and is spaced a short distance upwardly from the inner surface of the bottom side of the box as is clearly shown in Fig. 3 of the drawings. 1

The box 2 is filled with any suitable type of granular fire proof material such as sand, granulated asbestos or the like indicated at 6 in Fig. 3 of the drawings. The lower end of the furnace housing 1 is also filled with the granular material which extends up- 1vOva-rdly therein above the upper side of the The box 2 has a plurality of pipes 7 communicating with the upper surface thereof and extending through the top 8 of the box, providing communication with the granular material which is contained therein. The pipes 7 are secured to the under surface of a volatile liquid containing tank 9 and they have valve mechanisms 10 interposed therein for controlling the quantity of volatile liquid fed from the tank '9 into the box 2. The volatile liquid retaining tank 9 may be supported in any suitable manner above the box 2, so that the liquid fuel will flow through the pipe 7 by gravitation.

The box 2 has a plurality of air feeding pipes 15 extending horizontally therein, from the marginal edges, which pipes have communication with the atmosphere around the outside of the box. The pipes 15 are disposed in sets, constituting a set 16 which extends inwardly from one and sets'17 and 18 which extend into the box from the sides of the same. The pipes 15 are bent for extending vertically within the interior of the housing 1, as is clearly shown in Fig. 3 of the drawings, for feeding the necessary amount of oxygen into the furnace for insuring the proper combustion of the volatile liquid. Suitable dampers 19 are slidably carried by the outside of the box 2 and are provided for controlling the quantity of air passing through the pipes 15.

In the operation of the improved furnace end of the box heretofore described: the volatile fuel is fed' downwardly from the tank 9 through the. pipes 7 and upon entering the box 2 will gradually filter through the granular material 6 which is positioned therein, thus dis-1 tributing the volatile fuel equally 'in' all parts of the box 2 and the lower end of they ing the proper combustion of the fuel. The

heat of the burning fuel or liquid will draw the fuelupwardly through the granular material and make a continuous burning of the fuel therein. WVhen it is desired to ,extinguish'the fire, a shovel full of sand or granular material may be thrown upon the upper surface of that already in the furnace housing 1, which will extinguish the flame, or if it is so desired a plate may be provided for placing upon the upper surface of the same, (which plate is not shown).

From the foregoing description taken in connection with the accompanying drawings the advantages of construction and of the method of operation of the improved oil burning furnace Will be readily apparent to those skilled in the art to which this inven tion appertains and, while in the foregoing description, the principle of the operation 1 of this invention has been described together with various features of construction, it is to be understood that certain minor features of construction, combination and arrangement of parts may be altered to suit practical conditions provided such alterations are comprehended within the scope of What is claimed.

What isclaimed is v I 1. In a furnace structure, a furnace housing havingits lower bottom end Lopen, abox mounted upon the lower open end of said furnace housing and having said housing positionedither'ein and spaced a slight distance upwardly from the inner surface of the bottom of saidbox, granular material positioned within-said box and the lower open end of 5 liquid into said box; for filtering through said granular material.

2. Ina furnace structure, a furnace housing having its lowerend open, a box mounted about thelower open end of said furnace housing, said. housing being seated in said box and havlng ltslower end spaced a short distance upwardly from the inner surface of the bottom of said box, granular fire-proof material positioned within'said box and in the lower end of said housing, a pluralityof air pipes extending horizontally through said box and vertically upwardinto said housing, dampers for controlling the quantity of air passing through said tubes, a V01 atile liquid supply tank, a plurality of pipes connected to said volatile liquid supply tank and extending into the upper portion of said box for feeding volatile liquid from said tank by gravitation into said granular material, and means for regulating the quantity of volatile fuel flowing through said pipes.

In testimony whereof I aflix my signature in presence of two witnesses.

- JOHN P. WALSH. Witnesses: M. M. BALL,

A. P. HOOVER.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

1 Washington, D. 0. 

